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Finding the Fourth Proportional to 69,482.10, 103,974 and 60,154.20

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Solution

The fourth proportional to 69,482.10, 103,974 and 60,154.20 is: 90,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,482.10 : 103,974 = 60,154.20 : x
  2. Step 2: Convert to fraction form
    69,482.10/103,974 = 60,154.20/x
  3. Step 3: Cross multiply
    69,482.10x = 103,974 × 60,154.20
  4. Step 4: Simplify right side
    69,482.10x = 6,254,472,790.80
  5. Step 5: Solve for x
    x = 6,254,472,790.80/69,482.10
  6. Step 6: Final answer
    x = 90,015.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.